| Rancho Santa Margarita to Bonhill | 5,107.97 mi (8,220.49 km) |
| Rancho Santa Margarita to Bonnyrigg | 5,157.40 mi (8,300.03 km) |
| Rancho Santa Margarita to Bootle | 5,265.45 mi (8,473.93 km) |
| Rancho Santa Margarita to Borehamwood | 5,432.24 mi (8,742.34 km) |
| Rancho Santa Margarita to Boscombe | 5,422.54 mi (8,726.73 km) |
| Rancho Santa Margarita to Boston | 5,380.57 mi (8,659.19 km) |
| Rancho Santa Margarita to Bottesford | 5,334.15 mi (8,584.49 km) |
| Rancho Santa Margarita to Bourne | 5,378.63 mi (8,656.08 km) |
| Rancho Santa Margarita to Bournemouth | 5,421.42 mi (8,724.93 km) |
| Rancho Santa Margarita to Bournville | 5,343.84 mi (8,600.07 km) |
| Rancho Santa Margarita to Bovingdon | 5,420.72 mi (8,723.81 km) |
| Rancho Santa Margarita to Bowdon | 5,288.42 mi (8,510.89 km) |
| Rancho Santa Margarita to Boxley | 5,474.79 mi (8,810.83 km) |
| Rancho Santa Margarita to Brackley | 5,387.07 mi (8,669.65 km) |
| Rancho Santa Margarita to Bracknell | 5,427.67 mi (8,735.00 km) |
